Electric vaporizer



ANOV. 6, 1936i.v M KATZMAN Re. 19,367

ELECTRIC vAPoRIzER l original Filed May i, 1929 v law ATT RNEYS Reissued Nov. 6, 1934 ELECTRIC VAPORIZER Max Katzman, Utica, N.Y.

Original No. 1,879,297,'dated September 27, 1932, Serial No. 359,551, May 1, 1929. Application for reissue August 14, 1934, Serial No. 739,835

1o claims. (c1. 21e-4o) .1 L

Thisinvention relates to an electric vaporizer of the class set forth in my reissue application Serial No. 220,617, led September 19th, 1927, original Patent No. 1,628,784, and also my Patl ents No. 1,927,316, September 19th, 1933, and No.

1,802,654, April 28th, 1931.

The primary object of these devices is to provide a safe and convenient means for electrically vaporizing medicinal and deodorizing liquids l and liberating the vapor into the room in which the device is located for hygienic purposes, but obviously is adapted for many other uses, such for example, as humidors for supplying extra moisturevto the air in the room.

16 The present invention, however, relates more particularly to the construction of the electrodes of the heater and to the manner of mounting the same upon the lid or cover of the receptacle, theobject being to prolong the life and to greatly increase the heating efficiency ofthe electrodes and at the same time to reduce the liability of short circuiting deposits upon and between the electrodes by allowing any foreign matter which may accumulate in and around the electrodes to drop by its own weight or by the ebullition of the liquid in the receptacle to the bottom of the container away from the electrodes.

Another object is to hold the.electrodes in spaced relation to. the lid or cover of the receptacle by means of a spacing block of insulating material having means for holding the adjacent faces of the electrodesin parallel spaced relation to lform an intervening liquid-receiving space through which the electric current is adapted to pass forrheating the liquid.

In the drawing: i f Figure 1 is a side elevation 'of an electric vaporizer embodying the various features of my invention. l Figures 2 and 3 are enlarged vertical sectional views taken respectively in the planes of lines v2 -2, Figure 1, and 3-3, Figure 2.

As illustrated, this device comprises a main supporting frame 1, a receptacle 2 having a. removable lid or cover 3, an electric heater 4 and an electric plug or coupler 5,v

The frame 1 comprises a circular base 6 and f a resilient arm 7 extending upwardly along the outside of. the receptacle 2 and having its lower vend secured at 8 to the base 6' and its upper end extended above the adjacent portion of the lid 3 `and secured by screws 9for equivalent fastening means to the electric plug or coupler 5.

The base 6 is preferably made of sheet metal 85 and isprovided in its upper side with a relatively shallow circular recess 10` in which` the lower end of the receptacle is removably seated. The receptacle 2 is preferably made of transparent glass or other suitable insulatingmaterial and is adapted to receive the liquid to be vaporized, said receptacle being mainly cylindrical for convenience of handling and cleansing. l

. The lid or cover 3 preferably comprises a metallic rim or ring section 11 and an insulating section 12 ofporcelain or other suitable in# s ulating material.A The rim section 3 isprefer-Y ably angular in cross section to form vertical and horizontal flanges 13 and 14, the flange 13 being preferably threaded to engage corresponding peripheral threads on the upper end of the receptacle 2 While the horizontal flange 14 serves as ameans for holding the insulatingsection 12 in operative position on the upper end of the receptacle.

That is, the insulating section 12 is providedwith an'annular flange l5 which is adapted to be interposed between the horizontal flange 14 of the rim 11 and end face of the receptacle'Z with a suitable interposed packing 16 to reduce the liabilityqof leakage of the liquid or vapor from the.

bottle through the adjacent joint. v y

The insulating section 12 is also provided with an upwardly and laterally extending discharge nozzle 17 having an outlet passage 18 therethrough for the discharge ofthe vaporized fluid into Ythe room in which the device is located, said outlet being preferably tapered toward its outer end tov cause the vapor to be discharged with increased force some distance therefrom into the room.

The heater 4 is suspended from the insulatingv section 12 of the lid 3 into the interior of th receptacle 2 for submergnce into the liquid to be vaporizel and comprises, in this instance, a pair of similar rectangular electrodes 19 preferably of steel or other suitable metal and a pair of conductor rods 20 having their upperends extended through corresponding apertures in the insulatingl section l2 and provided with external terminal extensions 20 adapted to be engaged by socketed terminals 5 of the plug or cover 5.

Theseterminal rods are provided at their junctions with the terminalsl 20' with shoulders 21 normally seated in corresponding recesses in the upper face of the insulating section 12 to hold therods 20 against downward movement.

These conductor rods,20 are extended downwardly from the lid orcap 3-through correspondmg openings in a spacing blockl 22 of insulating material and having their lower ends threaded and engaged with correspondingly threaded soc ets 19' in theelectrodes 19'which obviously permits both electrodes to be reversed about the axes of their respective loads 20 to present dinerent faces thereof to the intervening gap when said faces become impaired.

This'insulating block 20 is common to both of the electrodes 19 and extends from the underside of the insulating section 12 to the upper faces of the electrodes to hold the latter in proximity to but slightly above the bottom of the receptacle 2.

The lower end of the insulating block 22 is provided with a relatively narrow rib 23 at right angles to the plane of the conductor rods 20 and adapted to extend a relatively short distance below the upper faces of the electrodes 19 for holding them in uniformly spaced parallel relation for the reception of the liquid to be heated.

The electric plug or coupler 5 comprises the terminal sockets 5 and an insulating housing .24

therefrom. The terminal 'sockets 5 are conconductors of comparatively low electrical resist'- ance so that the electric current which is supplied thereto through the conductors 20 when then terminals 20 are engaged by the electric plug 5 may readily pass from 'one electrode to the other through-the interveningbody of liquid where 'the greatest ebullition takes place the heat from the electrodes is transmitted to the surrounding liquid throughout the areas thereof to further expedite the conversion of the liquid in the vapor.

' .One of the important advantages in making the electrodes of metal is that their adjacent faces may be made comparatively smooth and owing to 'the fact that the space between the electrodes is i open at thenbottom 'and at opposite sides, it is evident that any foreign matter which may tend to4 accumulate' therein may readily be precipitated therefrom to thev bottom of the receptacle.

Furthermore, the agitation and circulation of the liquid produced by ebullition thereof between the electrodes serves to clean vthe adjacent faces thereof from any foreign matter thereby increasing the eiiiciency of the heater in the more rapid conversion of the liquid into vapor. It is obvious upon reference toliigures 2 and 3 that when the plug 5 is removed the threaded connections between the terminal rods 20 and electrodes 19 may be loosened by simply unscrewingv the rods suiflciently to permit the electrodes to be turned about the axes of their respective rods to present different' facesthereof to the intervening gap in case said faces should become impaired. What I claim is:

1. In'an electric vaporizer, a receptacle having a removable lid provided with a section of iri- 'sulating material, ai'iffelectric heater having electric conductors suspended from said insulating` section of the lid, said conductors-havingtheir upper ends provided with-outwardly projecting terminals adapted to receive an electric plug, and metal electrodes secured'to the lower ends of the cnductors in transversely spaced relation, the spaces between the .electrodes being open at the bottom and at opposite Asides and an insulating-bloc'lr interposed between the electrodes The all-metal electrodes 19 constitute electric.

a removable lid and an electric heater suspended from said lid within the receptacle and comprising a pair of rectangular electrodes having threaded sockets and threaded conductors engaged in said sockets and extending through openings in the lid, said conductors being provided with external terminals adapted to be engaged by an electric plug, and a socketed insulating block of heat-refracting material interposed between the lower face of the lid and upper face of the electrodes and enclosing the adjacent portions of the conductors, said insuating block having 4its lower end extended a relatively short distance between the electrodes for holding the latter against turning movement of their respective conductors.

l3. In an electric vaporiaer, `a container for the material to be vaporized, an insulating block, a pair of electrodes abutting against the lower end of the block to form an intervening space open at the bottom, and means supported from the top of the container and extending through said block for clamping the electrodes to the lower end thereof. .v

4. An electric vaporizer comprising a receptacle forv the liquid to be vaporized, a lid for thereceptacle,` electric heater terminals on the lid, conducting rods suspended from the terminals, and electrodes supported by the rods in spaced relation to form an intervening water-gap open at lthe bottom and at opposite sides.

5. In an electric vaporizer, a receptacle for the liquid'to be vaporized, a cover for the re tacle, conductors suspended from the cover' Within'the receptacle, electrodes mounted on the -lower ends of the conductors in transversely spaced relation and havingtheir adjacentifaces` substantially nat and rectangular, the space betweensaid electrodes being open at the bottom to allow precipitation of sediment therefrom to the bottom of the receptacle, and insulation inclosing the conductors and extending from the electrodes to the cover.

7. In'an 'electric vaporizer, a receptaclefo'r the -liquid to be vaporized, a cover for the receptacle,

conductors` suspended Vfrom the cover within the receptacle, electrodes mounted on the lower ends of the# conductors in transversely' spaced relation and having their adjacent faces substan-f tially fiat and rectangular andparallel, the space between said electrodesbeing open at the bottoni/to allow precipitation of sediment therefrom to the bottom of the receptacleand insulating means projecting into the upper portion of said 'space and'enga'ging the electrodesto hold them inspaced relation.

' 8. Inan electric vaporizer, a receptagzzlel for the liquid .to be vaporized, a cover for the receptacle, conductors suspended from the cover within-the receptacle, electrodes `mounted on the lower ends of the' conductors in transversely Vspaced relameer tion, and insulating means mounted on the conl ductors above the electrodes for holding them in transversely spacedrelation and having their adjacent faces substantially ilat, rectangular and parallel, vthe space betweensaid electrodes being open at the bottom to allow precipitation oi' sedi- Ama.

ment therefrom to the bottom of the receptacle..

and insulating means englgins the electrodes tol retain them against being turned.

10. In an electric vaporizer, a receptacle tor the liquid .to be vaporized, a cover for the receptacle, conductors suspended from the cover within the receptacle, electrodes mounted on the lower ends oi' the conductors near the bottom of the container, insulating means mounted on the conductors between the cover and the electrodes, portions of said insulating means pro-A Jecting downwardly in engaging relationship with the electrodes-,to prevent them i'rom turn- MAX KA'IWANZ 

